“…This paper and the model proposed can be instead related to the concept of damagecontrolled structures (Huang et al, 2001) which consists in two parallel structures: the auxiliary structure is designed to damage and it introduces larger stiffness and new energy dissipation capacity and in this way the primary structure can resist also to severe earthquake. The application of damage-controlled model to existing buildings imposes further considerations in terms of compatibility and interaction and in this field the definition of the building exoskeleton method can open to new research and innovations in that direction, promoting light interventions acting from the outside.…”